3C 58 or 3C58 is a pulsar and supernova remnant within the Milky Way. The object is listed as No. 58 in the Third Cambridge Catalogue of Radio Sources.
X-ray image of 3C 58 by the Chandra X-Ray Observatory. The pullout box shows the inner toroidal-shaped nebula
A pulsar wind nebula, sometimes called a plerion, is a type of nebula sometimes found inside the shell of a supernova remnant (SNR), powered by winds generated by a central pulsar. These nebulae were proposed as a class in 1976 as enhancements at radio wavelengths inside supernova remnants. They have since been found to be infrared, optical, millimetre, X-ray and gamma ray sources.
The Vela Pulsar (centre) and its surrounding pulsar wind nebula
The inner Crab Nebula. Central part shows the pulsar wind nebula, with the red star in the centre being the Crab Pulsar. Image combines optical data from Hubble (in red) and X-ray data from Chandra (in blue).